关键词: 无线传感器网络, LEACH协议, 簇头, 临时ID号

Abstract: Classical clustering communication protocol of LEACH was analyzed. Concerning the problem that the amounts of cluster heads and too many or too few members of the cluster may cause the accelerated death of the nodes and low energy use of the network, by calculating optimal clustering heads and controlling members of the cluster, the consumed energy was balanced, the usage rate of the network energy was improved and the networks lifetime was prolonged. At the same time, a simple and effective method of assigning temporary ID was given, which can assure the dissimilarity of the IDs with large probability. The simulation results indicate that, compared with LEACH, LEACHID extends the lifetime of network, delays the first nodes death time, and enhances the energy efficiency.

Key words: Wireless Sensor Network (WSN), LEACH protocol, cluster head, temporary ID number